Wcd9341 Datasheet <2026 Release>

Standardized MIPI SoundWire digital interface used to communicate with the host processor for control and data.

In the world of mobile audio, the difference between a standard smartphone and an audiophile-grade device often comes down to a single component: the . The Qualcomm WCD9341 is one of the most revered audio chips ever produced, famously powering the audio output of flagships like the LG G8 ThinQ, Samsung Galaxy S9/S9+, and the Xiaomi Mi 9.

Outline the for analog audio lines to prevent static noise. wcd9341 datasheet

is part of the Qualcomm Aqstic audio platform . Unlike basic audio chips, it combines a highly efficient , an analogue-to-digital converter (ADC) , and a dedicated digital signal processor (DSP) into a single, surface-mount package. Key Functional Blocks

: Typically exceeds 120 dB (based on related Aqstic family specifications). Outline the for analog audio lines to prevent static noise

The internal block diagram of the WCD9341 consists of three primary domains: Analog Front-End (AFE), Digital Signal Processing (DSP) Core, and Power Management. Digital Signal Processing (DSP) Engine

TYPICAL PINOUT CATEGORIES (TOP VIEW CONCEPT) +---------------------------------------------------+ | [VDD_ANA] [VDD_DIG] [MIC_BIAS1] [MIC_IN1_P] | -> Power & Mic Inputs | [SWR_CLK] [SWR_DATA] [SLIM_CLK] [SLIM_DAT] | -> Digital Bus Interfaces | [HPH_L] [HPH_R] [HPH_GND] [GND_ANA] | -> Headphone Output Analogue +---------------------------------------------------+ Critical Pins to Reference During Troubleshooting Key Functional Blocks : Typically exceeds 120 dB

The Ultimate Guide to the WCD9341 Audio Codec Datasheet The Qualcomm WCD9341—commercially known as the —is a flagship, ultra-low-power hardware component designed for premium mobile devices . It handles high-fidelity digital-to-analogue conversion (DAC), analogue-to-digital conversion (ADC), and advanced voice processing. It is frequently paired with Snapdragon processors (like the Snapdragon 835 and 845) in legacy flagship smartphones.

Differential microphone traces must be routed with matched lengths to maintain high Common Mode Rejection Ratio (CMRR). Technical Support and Sourcing Datasheets

Features an integrated Class-G/H headphone amplifier controller that dynamically shifts internal supply rails depending on the audio signal level, maximizing efficiency and saving battery life. 5. Application and Implementation Notes